xref: /freebsd/sys/dev/sfxge/common/ef10_mac.c (revision edf8578117e8844e02c0121147f45e4609b30680)
1 /*-
2  * Copyright (c) 2012-2016 Solarflare Communications Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  *    this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  *    this list of conditions and the following disclaimer in the documentation
12  *    and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * The views and conclusions contained in the software and documentation are
27  * those of the authors and should not be interpreted as representing official
28  * policies, either expressed or implied, of the FreeBSD Project.
29  */
30 
31 #include <sys/cdefs.h>
32 #include "efx.h"
33 #include "efx_impl.h"
34 
35 #if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2
36 
37 	__checkReturn	efx_rc_t
38 ef10_mac_poll(
39 	__in		efx_nic_t *enp,
40 	__out		efx_link_mode_t *link_modep)
41 {
42 	efx_port_t *epp = &(enp->en_port);
43 	ef10_link_state_t els;
44 	efx_rc_t rc;
45 
46 	if ((rc = ef10_phy_get_link(enp, &els)) != 0)
47 		goto fail1;
48 
49 	epp->ep_adv_cap_mask = els.epls.epls_adv_cap_mask;
50 	epp->ep_fcntl = els.epls.epls_fcntl;
51 
52 	*link_modep = els.epls.epls_link_mode;
53 
54 	return (0);
55 
56 fail1:
57 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
58 
59 	*link_modep = EFX_LINK_UNKNOWN;
60 
61 	return (rc);
62 }
63 
64 	__checkReturn	efx_rc_t
65 ef10_mac_up(
66 	__in		efx_nic_t *enp,
67 	__out		boolean_t *mac_upp)
68 {
69 	ef10_link_state_t els;
70 	efx_rc_t rc;
71 
72 	/*
73 	 * Because EF10 doesn't *require* polling, we can't rely on
74 	 * ef10_mac_poll() being executed to populate epp->ep_mac_up.
75 	 */
76 	if ((rc = ef10_phy_get_link(enp, &els)) != 0)
77 		goto fail1;
78 
79 	*mac_upp = els.els_mac_up;
80 
81 	return (0);
82 
83 fail1:
84 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
85 
86 	return (rc);
87 }
88 
89 /*
90  * EF10 adapters use MC_CMD_VADAPTOR_SET_MAC to set the
91  * MAC address; the address field in MC_CMD_SET_MAC has no
92  * effect.
93  * MC_CMD_VADAPTOR_SET_MAC requires mac-spoofing privilege and
94  * the port to have no filters or queues active.
95  */
96 static	__checkReturn	efx_rc_t
97 efx_mcdi_vadapter_set_mac(
98 	__in		efx_nic_t *enp)
99 {
100 	efx_port_t *epp = &(enp->en_port);
101 	efx_mcdi_req_t req;
102 	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_VADAPTOR_SET_MAC_IN_LEN,
103 		MC_CMD_VADAPTOR_SET_MAC_OUT_LEN);
104 	efx_rc_t rc;
105 
106 	req.emr_cmd = MC_CMD_VADAPTOR_SET_MAC;
107 	req.emr_in_buf = payload;
108 	req.emr_in_length = MC_CMD_VADAPTOR_SET_MAC_IN_LEN;
109 	req.emr_out_buf = payload;
110 	req.emr_out_length = MC_CMD_VADAPTOR_SET_MAC_OUT_LEN;
111 
112 	MCDI_IN_SET_DWORD(req, VADAPTOR_SET_MAC_IN_UPSTREAM_PORT_ID,
113 	    enp->en_vport_id);
114 	EFX_MAC_ADDR_COPY(MCDI_IN2(req, uint8_t, VADAPTOR_SET_MAC_IN_MACADDR),
115 	    epp->ep_mac_addr);
116 
117 	efx_mcdi_execute(enp, &req);
118 
119 	if (req.emr_rc != 0) {
120 		rc = req.emr_rc;
121 		goto fail1;
122 	}
123 
124 	return (0);
125 
126 fail1:
127 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
128 
129 	return (rc);
130 }
131 
132 	__checkReturn	efx_rc_t
133 ef10_mac_addr_set(
134 	__in		efx_nic_t *enp)
135 {
136 	efx_rc_t rc;
137 
138 	if ((rc = efx_mcdi_vadapter_set_mac(enp)) != 0) {
139 		if (rc != ENOTSUP)
140 			goto fail1;
141 
142 		/*
143 		 * Fallback for older Huntington firmware without Vadapter
144 		 * support.
145 		 */
146 		if ((rc = ef10_mac_reconfigure(enp)) != 0)
147 			goto fail2;
148 	}
149 
150 	return (0);
151 
152 fail2:
153 	EFSYS_PROBE(fail2);
154 
155 fail1:
156 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
157 
158 	return (rc);
159 }
160 
161 static	__checkReturn	efx_rc_t
162 efx_mcdi_mtu_set(
163 	__in		efx_nic_t *enp,
164 	__in		uint32_t mtu)
165 {
166 	efx_mcdi_req_t req;
167 	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_MAC_EXT_IN_LEN,
168 		MC_CMD_SET_MAC_OUT_LEN);
169 	efx_rc_t rc;
170 
171 	req.emr_cmd = MC_CMD_SET_MAC;
172 	req.emr_in_buf = payload;
173 	req.emr_in_length = MC_CMD_SET_MAC_EXT_IN_LEN;
174 	req.emr_out_buf = payload;
175 	req.emr_out_length = MC_CMD_SET_MAC_OUT_LEN;
176 
177 	/* Only configure the MTU in this call to MC_CMD_SET_MAC */
178 	MCDI_IN_SET_DWORD(req, SET_MAC_EXT_IN_MTU, mtu);
179 	MCDI_IN_POPULATE_DWORD_1(req, SET_MAC_EXT_IN_CONTROL,
180 			    SET_MAC_EXT_IN_CFG_MTU, 1);
181 
182 	efx_mcdi_execute(enp, &req);
183 
184 	if (req.emr_rc != 0) {
185 		rc = req.emr_rc;
186 		goto fail1;
187 	}
188 
189 	return (0);
190 
191 fail1:
192 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
193 
194 	return (rc);
195 }
196 
197 static	__checkReturn		efx_rc_t
198 efx_mcdi_mtu_get(
199 	__in		efx_nic_t *enp,
200 	__out		size_t *mtu)
201 {
202 	efx_mcdi_req_t req;
203 	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_MAC_EXT_IN_LEN,
204 		MC_CMD_SET_MAC_V2_OUT_LEN);
205 	efx_rc_t rc;
206 
207 	req.emr_cmd = MC_CMD_SET_MAC;
208 	req.emr_in_buf = payload;
209 	req.emr_in_length = MC_CMD_SET_MAC_EXT_IN_LEN;
210 	req.emr_out_buf = payload;
211 	req.emr_out_length = MC_CMD_SET_MAC_V2_OUT_LEN;
212 
213 	/*
214 	 * With MC_CMD_SET_MAC_EXT_IN_CONTROL set to 0, this just queries the
215 	 * MTU.  This should always be supported on Medford, but it is not
216 	 * supported on older Huntington firmware.
217 	 */
218 	MCDI_IN_SET_DWORD(req, SET_MAC_EXT_IN_CONTROL, 0);
219 
220 	efx_mcdi_execute(enp, &req);
221 
222 	if (req.emr_rc != 0) {
223 		rc = req.emr_rc;
224 		goto fail1;
225 	}
226 	if (req.emr_out_length_used < MC_CMD_SET_MAC_V2_OUT_MTU_OFST + 4) {
227 		rc = EMSGSIZE;
228 		goto fail2;
229 	}
230 
231 	*mtu = MCDI_OUT_DWORD(req, SET_MAC_V2_OUT_MTU);
232 
233 	return (0);
234 
235 fail2:
236 	EFSYS_PROBE(fail2);
237 fail1:
238 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
239 
240 	return (rc);
241 }
242 
243 	__checkReturn	efx_rc_t
244 ef10_mac_pdu_set(
245 	__in		efx_nic_t *enp)
246 {
247 	efx_port_t *epp = &(enp->en_port);
248 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
249 	efx_rc_t rc;
250 
251 	if (encp->enc_enhanced_set_mac_supported) {
252 		if ((rc = efx_mcdi_mtu_set(enp, epp->ep_mac_pdu)) != 0)
253 			goto fail1;
254 	} else {
255 		/*
256 		 * Fallback for older Huntington firmware, which always
257 		 * configure all of the parameters to MC_CMD_SET_MAC. This isn't
258 		 * suitable for setting the MTU on unpriviliged functions.
259 		 */
260 		if ((rc = ef10_mac_reconfigure(enp)) != 0)
261 			goto fail2;
262 	}
263 
264 	return (0);
265 
266 fail2:
267 	EFSYS_PROBE(fail2);
268 fail1:
269 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
270 
271 	return (rc);
272 }
273 
274 	__checkReturn		efx_rc_t
275 ef10_mac_pdu_get(
276 	__in		efx_nic_t *enp,
277 	__out		size_t *pdu)
278 {
279 	efx_rc_t rc;
280 
281 	if ((rc = efx_mcdi_mtu_get(enp, pdu)) != 0)
282 		goto fail1;
283 
284 	return (0);
285 
286 fail1:
287 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
288 
289 	return (rc);
290 }
291 
292 __checkReturn	efx_rc_t
293 ef10_mac_reconfigure(
294 	__in		efx_nic_t *enp)
295 {
296 	efx_port_t *epp = &(enp->en_port);
297 	efx_mcdi_req_t req;
298 	EFX_MCDI_DECLARE_BUF(payload, MC_CMD_SET_MAC_IN_LEN,
299 		MC_CMD_SET_MAC_OUT_LEN);
300 	efx_rc_t rc;
301 
302 	req.emr_cmd = MC_CMD_SET_MAC;
303 	req.emr_in_buf = payload;
304 	req.emr_in_length = MC_CMD_SET_MAC_IN_LEN;
305 	req.emr_out_buf = payload;
306 	req.emr_out_length = MC_CMD_SET_MAC_OUT_LEN;
307 
308 	MCDI_IN_SET_DWORD(req, SET_MAC_IN_MTU, epp->ep_mac_pdu);
309 	MCDI_IN_SET_DWORD(req, SET_MAC_IN_DRAIN, epp->ep_mac_drain ? 1 : 0);
310 	EFX_MAC_ADDR_COPY(MCDI_IN2(req, uint8_t, SET_MAC_IN_ADDR),
311 			    epp->ep_mac_addr);
312 
313 	/*
314 	 * Note: The Huntington MAC does not support REJECT_BRDCST.
315 	 * The REJECT_UNCST flag will also prevent multicast traffic
316 	 * from reaching the filters. As Huntington filters drop any
317 	 * traffic that does not match a filter it is ok to leave the
318 	 * MAC running in promiscuous mode. See bug41141.
319 	 *
320 	 * FIXME: Does REJECT_UNCST behave the same way on Medford?
321 	 */
322 	MCDI_IN_POPULATE_DWORD_2(req, SET_MAC_IN_REJECT,
323 				    SET_MAC_IN_REJECT_UNCST, 0,
324 				    SET_MAC_IN_REJECT_BRDCST, 0);
325 
326 	/*
327 	 * Flow control, whether it is auto-negotiated or not,
328 	 * is set via the PHY advertised capabilities.  When set to
329 	 * automatic the MAC will use the PHY settings to determine
330 	 * the flow control settings.
331 	 */
332 	MCDI_IN_SET_DWORD(req, SET_MAC_IN_FCNTL, MC_CMD_FCNTL_AUTO);
333 
334 	/* Do not include the Ethernet frame checksum in RX packets */
335 	MCDI_IN_POPULATE_DWORD_1(req, SET_MAC_IN_FLAGS,
336 				    SET_MAC_IN_FLAG_INCLUDE_FCS, 0);
337 
338 	efx_mcdi_execute_quiet(enp, &req);
339 
340 	if (req.emr_rc != 0) {
341 		/*
342 		 * Unprivileged functions cannot control link state,
343 		 * but still need to configure filters.
344 		 */
345 		if (req.emr_rc != EACCES) {
346 			rc = req.emr_rc;
347 			goto fail1;
348 		}
349 	}
350 
351 	/*
352 	 * Apply the filters for the MAC configuration.
353 	 * If the NIC isn't ready to accept filters this may
354 	 * return success without setting anything.
355 	 */
356 	rc = efx_filter_reconfigure(enp, epp->ep_mac_addr,
357 				    epp->ep_all_unicst, epp->ep_mulcst,
358 				    epp->ep_all_mulcst, epp->ep_brdcst,
359 				    epp->ep_mulcst_addr_list,
360 				    epp->ep_mulcst_addr_count);
361 
362 	return (0);
363 
364 fail1:
365 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
366 
367 	return (rc);
368 }
369 
370 	__checkReturn			efx_rc_t
371 ef10_mac_multicast_list_set(
372 	__in				efx_nic_t *enp)
373 {
374 	efx_port_t *epp = &(enp->en_port);
375 	const efx_mac_ops_t *emop = epp->ep_emop;
376 	efx_rc_t rc;
377 
378 	EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
379 	    enp->en_family == EFX_FAMILY_MEDFORD ||
380 	    enp->en_family == EFX_FAMILY_MEDFORD2);
381 
382 	if ((rc = emop->emo_reconfigure(enp)) != 0)
383 		goto fail1;
384 
385 	return (0);
386 
387 fail1:
388 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
389 
390 	return (rc);
391 }
392 
393 	__checkReturn	efx_rc_t
394 ef10_mac_filter_default_rxq_set(
395 	__in		efx_nic_t *enp,
396 	__in		efx_rxq_t *erp,
397 	__in		boolean_t using_rss)
398 {
399 	efx_port_t *epp = &(enp->en_port);
400 	efx_rxq_t *old_rxq;
401 	boolean_t old_using_rss;
402 	efx_rc_t rc;
403 
404 	ef10_filter_get_default_rxq(enp, &old_rxq, &old_using_rss);
405 
406 	ef10_filter_default_rxq_set(enp, erp, using_rss);
407 
408 	rc = efx_filter_reconfigure(enp, epp->ep_mac_addr,
409 				    epp->ep_all_unicst, epp->ep_mulcst,
410 				    epp->ep_all_mulcst, epp->ep_brdcst,
411 				    epp->ep_mulcst_addr_list,
412 				    epp->ep_mulcst_addr_count);
413 
414 	if (rc != 0)
415 		goto fail1;
416 
417 	return (0);
418 
419 fail1:
420 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
421 
422 	ef10_filter_default_rxq_set(enp, old_rxq, old_using_rss);
423 
424 	return (rc);
425 }
426 
427 			void
428 ef10_mac_filter_default_rxq_clear(
429 	__in		efx_nic_t *enp)
430 {
431 	efx_port_t *epp = &(enp->en_port);
432 
433 	ef10_filter_default_rxq_clear(enp);
434 
435 	(void) efx_filter_reconfigure(enp, epp->ep_mac_addr,
436 				    epp->ep_all_unicst, epp->ep_mulcst,
437 				    epp->ep_all_mulcst, epp->ep_brdcst,
438 				    epp->ep_mulcst_addr_list,
439 				    epp->ep_mulcst_addr_count);
440 }
441 
442 #if EFSYS_OPT_LOOPBACK
443 
444 	__checkReturn	efx_rc_t
445 ef10_mac_loopback_set(
446 	__in		efx_nic_t *enp,
447 	__in		efx_link_mode_t link_mode,
448 	__in		efx_loopback_type_t loopback_type)
449 {
450 	efx_port_t *epp = &(enp->en_port);
451 	const efx_phy_ops_t *epop = epp->ep_epop;
452 	efx_loopback_type_t old_loopback_type;
453 	efx_link_mode_t old_loopback_link_mode;
454 	efx_rc_t rc;
455 
456 	/* The PHY object handles this on EF10 */
457 	old_loopback_type = epp->ep_loopback_type;
458 	old_loopback_link_mode = epp->ep_loopback_link_mode;
459 	epp->ep_loopback_type = loopback_type;
460 	epp->ep_loopback_link_mode = link_mode;
461 
462 	if ((rc = epop->epo_reconfigure(enp)) != 0)
463 		goto fail1;
464 
465 	return (0);
466 
467 fail1:
468 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
469 
470 	epp->ep_loopback_type = old_loopback_type;
471 	epp->ep_loopback_link_mode = old_loopback_link_mode;
472 
473 	return (rc);
474 }
475 
476 #endif	/* EFSYS_OPT_LOOPBACK */
477 
478 #if EFSYS_OPT_MAC_STATS
479 
480 	__checkReturn			efx_rc_t
481 ef10_mac_stats_get_mask(
482 	__in				efx_nic_t *enp,
483 	__inout_bcount(mask_size)	uint32_t *maskp,
484 	__in				size_t mask_size)
485 {
486 	const struct efx_mac_stats_range ef10_common[] = {
487 		{ EFX_MAC_RX_OCTETS, EFX_MAC_RX_GE_15XX_PKTS },
488 		{ EFX_MAC_RX_FCS_ERRORS, EFX_MAC_RX_DROP_EVENTS },
489 		{ EFX_MAC_RX_JABBER_PKTS, EFX_MAC_RX_JABBER_PKTS },
490 		{ EFX_MAC_RX_NODESC_DROP_CNT, EFX_MAC_TX_PAUSE_PKTS },
491 	};
492 	const struct efx_mac_stats_range ef10_tx_size_bins[] = {
493 		{ EFX_MAC_TX_LE_64_PKTS, EFX_MAC_TX_GE_15XX_PKTS },
494 	};
495 	efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
496 	efx_port_t *epp = &(enp->en_port);
497 	efx_rc_t rc;
498 
499 	if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
500 	    ef10_common, EFX_ARRAY_SIZE(ef10_common))) != 0)
501 		goto fail1;
502 
503 	if (epp->ep_phy_cap_mask & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) {
504 		const struct efx_mac_stats_range ef10_40g_extra[] = {
505 			{ EFX_MAC_RX_ALIGN_ERRORS, EFX_MAC_RX_ALIGN_ERRORS },
506 		};
507 
508 		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
509 		    ef10_40g_extra, EFX_ARRAY_SIZE(ef10_40g_extra))) != 0)
510 			goto fail2;
511 
512 		if (encp->enc_mac_stats_40g_tx_size_bins) {
513 			if ((rc = efx_mac_stats_mask_add_ranges(maskp,
514 			    mask_size, ef10_tx_size_bins,
515 			    EFX_ARRAY_SIZE(ef10_tx_size_bins))) != 0)
516 				goto fail3;
517 		}
518 	} else {
519 		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
520 		    ef10_tx_size_bins, EFX_ARRAY_SIZE(ef10_tx_size_bins))) != 0)
521 			goto fail4;
522 	}
523 
524 	if (encp->enc_pm_and_rxdp_counters) {
525 		const struct efx_mac_stats_range ef10_pm_and_rxdp[] = {
526 			{ EFX_MAC_PM_TRUNC_BB_OVERFLOW, EFX_MAC_RXDP_HLB_WAIT },
527 		};
528 
529 		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
530 		    ef10_pm_and_rxdp, EFX_ARRAY_SIZE(ef10_pm_and_rxdp))) != 0)
531 			goto fail5;
532 	}
533 
534 	if (encp->enc_datapath_cap_evb) {
535 		const struct efx_mac_stats_range ef10_vadaptor[] = {
536 			{ EFX_MAC_VADAPTER_RX_UNICAST_PACKETS,
537 			    EFX_MAC_VADAPTER_TX_OVERFLOW },
538 		};
539 
540 		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
541 		    ef10_vadaptor, EFX_ARRAY_SIZE(ef10_vadaptor))) != 0)
542 			goto fail6;
543 	}
544 
545 	if (encp->enc_fec_counters) {
546 		const struct efx_mac_stats_range ef10_fec[] = {
547 			{ EFX_MAC_FEC_UNCORRECTED_ERRORS,
548 			    EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE3 },
549 		};
550 		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
551 		    ef10_fec, EFX_ARRAY_SIZE(ef10_fec))) != 0)
552 			goto fail7;
553 	}
554 
555 	if (encp->enc_mac_stats_nstats >= MC_CMD_MAC_NSTATS_V4) {
556 		const struct efx_mac_stats_range ef10_rxdp_sdt[] = {
557 			{ EFX_MAC_RXDP_SCATTER_DISABLED_TRUNC,
558 			    EFX_MAC_RXDP_SCATTER_DISABLED_TRUNC },
559 		};
560 
561 		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
562 		    ef10_rxdp_sdt, EFX_ARRAY_SIZE(ef10_rxdp_sdt))) != 0)
563 			goto fail8;
564 	}
565 
566 	if (encp->enc_hlb_counters) {
567 		const struct efx_mac_stats_range ef10_hlb[] = {
568 			{ EFX_MAC_RXDP_HLB_IDLE, EFX_MAC_RXDP_HLB_TIMEOUT },
569 		};
570 		if ((rc = efx_mac_stats_mask_add_ranges(maskp, mask_size,
571 		    ef10_hlb, EFX_ARRAY_SIZE(ef10_hlb))) != 0)
572 			goto fail9;
573 	}
574 
575 	return (0);
576 
577 fail9:
578 	EFSYS_PROBE(fail9);
579 fail8:
580 	EFSYS_PROBE(fail8);
581 fail7:
582 	EFSYS_PROBE(fail7);
583 fail6:
584 	EFSYS_PROBE(fail6);
585 fail5:
586 	EFSYS_PROBE(fail5);
587 fail4:
588 	EFSYS_PROBE(fail4);
589 fail3:
590 	EFSYS_PROBE(fail3);
591 fail2:
592 	EFSYS_PROBE(fail2);
593 fail1:
594 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
595 
596 	return (rc);
597 }
598 
599 #define	EF10_MAC_STAT_READ(_esmp, _field, _eqp)			\
600 	EFSYS_MEM_READQ((_esmp), (_field) * sizeof (efx_qword_t), _eqp)
601 
602 	__checkReturn			efx_rc_t
603 ef10_mac_stats_update(
604 	__in				efx_nic_t *enp,
605 	__in				efsys_mem_t *esmp,
606 	__inout_ecount(EFX_MAC_NSTATS)	efsys_stat_t *stat,
607 	__inout_opt			uint32_t *generationp)
608 {
609 	const efx_nic_cfg_t *encp = &enp->en_nic_cfg;
610 	efx_qword_t generation_start;
611 	efx_qword_t generation_end;
612 	efx_qword_t value;
613 	efx_rc_t rc;
614 
615 	/*
616 	 * The MAC_STATS contain start and end generation counters used to
617 	 * detect when the DMA buffer has been updated during stats decode.
618 	 * All stats counters are 64bit unsigned values.
619 	 *
620 	 * Siena-compatible MAC stats contain MC_CMD_MAC_NSTATS 64bit counters.
621 	 * The generation end counter is at index MC_CMD_MAC_GENERATION_END
622 	 * (same as MC_CMD_MAC_NSTATS-1).
623 	 *
624 	 * Medford2 and later use a larger DMA buffer: MAC_STATS_NUM_STATS from
625 	 * MC_CMD_GET_CAPABILITIES_V4_OUT reports the number of 64bit counters.
626 	 *
627 	 * Firmware writes the generation end counter as the last counter in the
628 	 * DMA buffer. Do not use MC_CMD_MAC_GENERATION_END, as that is only
629 	 * correct for legacy Siena-compatible MAC stats.
630 	 */
631 
632 	if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS) {
633 		/* MAC stats count too small for legacy MAC stats */
634 		rc = ENOSPC;
635 		goto fail1;
636 	}
637 	if (EFSYS_MEM_SIZE(esmp) <
638 	    (encp->enc_mac_stats_nstats * sizeof (efx_qword_t))) {
639 		/* DMA buffer too small */
640 		rc = ENOSPC;
641 		goto fail2;
642 	}
643 
644 	/* Read END first so we don't race with the MC */
645 	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFSYS_MEM_SIZE(esmp));
646 	EF10_MAC_STAT_READ(esmp, (encp->enc_mac_stats_nstats - 1),
647 	    &generation_end);
648 	EFSYS_MEM_READ_BARRIER();
649 
650 	/* TX */
651 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_PKTS, &value);
652 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_PKTS]), &value);
653 
654 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_CONTROL_PKTS, &value);
655 	EFSYS_STAT_SUBR_QWORD(&(stat[EFX_MAC_TX_PKTS]), &value);
656 
657 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_PAUSE_PKTS, &value);
658 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_PAUSE_PKTS]), &value);
659 
660 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_UNICAST_PKTS, &value);
661 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_UNICST_PKTS]), &value);
662 
663 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_MULTICAST_PKTS, &value);
664 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_MULTICST_PKTS]), &value);
665 
666 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BROADCAST_PKTS, &value);
667 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_BRDCST_PKTS]), &value);
668 
669 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BYTES, &value);
670 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_OCTETS]), &value);
671 
672 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_LT64_PKTS, &value);
673 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);
674 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_64_PKTS, &value);
675 	EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_TX_LE_64_PKTS]), &value);
676 
677 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_65_TO_127_PKTS, &value);
678 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_65_TO_127_PKTS]), &value);
679 
680 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_128_TO_255_PKTS, &value);
681 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_128_TO_255_PKTS]), &value);
682 
683 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_256_TO_511_PKTS, &value);
684 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_256_TO_511_PKTS]), &value);
685 
686 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_512_TO_1023_PKTS, &value);
687 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_512_TO_1023_PKTS]), &value);
688 
689 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_1024_TO_15XX_PKTS, &value);
690 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_1024_TO_15XX_PKTS]), &value);
691 
692 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_15XX_TO_JUMBO_PKTS, &value);
693 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_GE_15XX_PKTS]), &value);
694 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_GTJUMBO_PKTS, &value);
695 	EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_TX_GE_15XX_PKTS]), &value);
696 
697 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_BAD_FCS_PKTS, &value);
698 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_ERRORS]), &value);
699 
700 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_SINGLE_COLLISION_PKTS, &value);
701 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_SGL_COL_PKTS]), &value);
702 
703 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_MULTIPLE_COLLISION_PKTS,
704 			    &value);
705 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_MULT_COL_PKTS]), &value);
706 
707 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_EXCESSIVE_COLLISION_PKTS,
708 			    &value);
709 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_EX_COL_PKTS]), &value);
710 
711 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_LATE_COLLISION_PKTS, &value);
712 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_LATE_COL_PKTS]), &value);
713 
714 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_DEFERRED_PKTS, &value);
715 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_DEF_PKTS]), &value);
716 
717 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_TX_EXCESSIVE_DEFERRED_PKTS,
718 	    &value);
719 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_TX_EX_DEF_PKTS]), &value);
720 
721 	/* RX */
722 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BYTES, &value);
723 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_OCTETS]), &value);
724 
725 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_PKTS, &value);
726 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_PKTS]), &value);
727 
728 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_UNICAST_PKTS, &value);
729 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_UNICST_PKTS]), &value);
730 
731 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_MULTICAST_PKTS, &value);
732 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_MULTICST_PKTS]), &value);
733 
734 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BROADCAST_PKTS, &value);
735 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_BRDCST_PKTS]), &value);
736 
737 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_PAUSE_PKTS, &value);
738 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_PAUSE_PKTS]), &value);
739 
740 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_UNDERSIZE_PKTS, &value);
741 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_LE_64_PKTS]), &value);
742 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_64_PKTS, &value);
743 	EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_RX_LE_64_PKTS]), &value);
744 
745 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_65_TO_127_PKTS, &value);
746 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_65_TO_127_PKTS]), &value);
747 
748 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_128_TO_255_PKTS, &value);
749 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_128_TO_255_PKTS]), &value);
750 
751 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_256_TO_511_PKTS, &value);
752 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_256_TO_511_PKTS]), &value);
753 
754 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_512_TO_1023_PKTS, &value);
755 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_512_TO_1023_PKTS]), &value);
756 
757 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_1024_TO_15XX_PKTS, &value);
758 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_1024_TO_15XX_PKTS]), &value);
759 
760 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_15XX_TO_JUMBO_PKTS, &value);
761 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_GE_15XX_PKTS]), &value);
762 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_GTJUMBO_PKTS, &value);
763 	EFSYS_STAT_INCR_QWORD(&(stat[EFX_MAC_RX_GE_15XX_PKTS]), &value);
764 
765 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_BAD_FCS_PKTS, &value);
766 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_FCS_ERRORS]), &value);
767 
768 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_OVERFLOW_PKTS, &value);
769 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_DROP_EVENTS]), &value);
770 
771 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_FALSE_CARRIER_PKTS, &value);
772 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_FALSE_CARRIER_ERRORS]), &value);
773 
774 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_SYMBOL_ERROR_PKTS, &value);
775 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_SYMBOL_ERRORS]), &value);
776 
777 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_ALIGN_ERROR_PKTS, &value);
778 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_ALIGN_ERRORS]), &value);
779 
780 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_INTERNAL_ERROR_PKTS, &value);
781 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_INTERNAL_ERRORS]), &value);
782 
783 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_JABBER_PKTS, &value);
784 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_JABBER_PKTS]), &value);
785 
786 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES01_CHAR_ERR, &value);
787 	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE0_CHAR_ERR]),
788 			    &(value.eq_dword[0]));
789 	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE1_CHAR_ERR]),
790 			    &(value.eq_dword[1]));
791 
792 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES23_CHAR_ERR, &value);
793 	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE2_CHAR_ERR]),
794 			    &(value.eq_dword[0]));
795 	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE3_CHAR_ERR]),
796 			    &(value.eq_dword[1]));
797 
798 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES01_DISP_ERR, &value);
799 	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE0_DISP_ERR]),
800 			    &(value.eq_dword[0]));
801 	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE1_DISP_ERR]),
802 			    &(value.eq_dword[1]));
803 
804 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_LANES23_DISP_ERR, &value);
805 	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE2_DISP_ERR]),
806 			    &(value.eq_dword[0]));
807 	EFSYS_STAT_SET_DWORD(&(stat[EFX_MAC_RX_LANE3_DISP_ERR]),
808 			    &(value.eq_dword[1]));
809 
810 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_MATCH_FAULT, &value);
811 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_MATCH_FAULT]), &value);
812 
813 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RX_NODESC_DROPS, &value);
814 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RX_NODESC_DROP_CNT]), &value);
815 
816 	/* Packet memory (EF10 only) */
817 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_BB_OVERFLOW, &value);
818 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_BB_OVERFLOW]), &value);
819 
820 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_BB_OVERFLOW, &value);
821 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_BB_OVERFLOW]), &value);
822 
823 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_VFIFO_FULL, &value);
824 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_VFIFO_FULL]), &value);
825 
826 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_VFIFO_FULL, &value);
827 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_VFIFO_FULL]), &value);
828 
829 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_TRUNC_QBB, &value);
830 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_TRUNC_QBB]), &value);
831 
832 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_QBB, &value);
833 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_QBB]), &value);
834 
835 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_PM_DISCARD_MAPPING, &value);
836 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_PM_DISCARD_MAPPING]), &value);
837 
838 	/* RX datapath */
839 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_Q_DISABLED_PKTS, &value);
840 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_Q_DISABLED_PKTS]), &value);
841 
842 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_DI_DROPPED_PKTS, &value);
843 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_DI_DROPPED_PKTS]), &value);
844 
845 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_STREAMING_PKTS, &value);
846 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_STREAMING_PKTS]), &value);
847 
848 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_FETCH_CONDITIONS, &value);
849 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_FETCH]), &value);
850 
851 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_WAIT_CONDITIONS, &value);
852 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_WAIT]), &value);
853 
854 	/* VADAPTER RX */
855 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_UNICAST_PACKETS,
856 	    &value);
857 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS]),
858 	    &value);
859 
860 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_UNICAST_BYTES,
861 	    &value);
862 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_UNICAST_BYTES]),
863 	    &value);
864 
865 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_MULTICAST_PACKETS,
866 	    &value);
867 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS]),
868 	    &value);
869 
870 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_MULTICAST_BYTES,
871 	    &value);
872 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES]),
873 	    &value);
874 
875 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BROADCAST_PACKETS,
876 	    &value);
877 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS]),
878 	    &value);
879 
880 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BROADCAST_BYTES,
881 	    &value);
882 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES]),
883 	    &value);
884 
885 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BAD_PACKETS,
886 	    &value);
887 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BAD_PACKETS]),
888 	    &value);
889 
890 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_BAD_BYTES, &value);
891 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_BAD_BYTES]), &value);
892 
893 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_RX_OVERFLOW, &value);
894 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_RX_OVERFLOW]), &value);
895 
896 	/* VADAPTER TX */
897 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_UNICAST_PACKETS,
898 	    &value);
899 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS]),
900 	    &value);
901 
902 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_UNICAST_BYTES,
903 	    &value);
904 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_UNICAST_BYTES]),
905 	    &value);
906 
907 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_MULTICAST_PACKETS,
908 	    &value);
909 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS]),
910 	    &value);
911 
912 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_MULTICAST_BYTES,
913 	    &value);
914 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES]),
915 	    &value);
916 
917 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BROADCAST_PACKETS,
918 	    &value);
919 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS]),
920 	    &value);
921 
922 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BROADCAST_BYTES,
923 	    &value);
924 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES]),
925 	    &value);
926 
927 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BAD_PACKETS, &value);
928 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BAD_PACKETS]), &value);
929 
930 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_BAD_BYTES, &value);
931 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_BAD_BYTES]), &value);
932 
933 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_VADAPTER_TX_OVERFLOW, &value);
934 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_VADAPTER_TX_OVERFLOW]), &value);
935 
936 	if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS_V2)
937 		goto done;
938 
939 	/* FEC */
940 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_UNCORRECTED_ERRORS, &value);
941 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_UNCORRECTED_ERRORS]), &value);
942 
943 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_ERRORS, &value);
944 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_ERRORS]), &value);
945 
946 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_SYMBOLS_LANE0,
947 	    &value);
948 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE0]),
949 	    &value);
950 
951 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_SYMBOLS_LANE1,
952 	    &value);
953 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE1]),
954 	    &value);
955 
956 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_SYMBOLS_LANE2,
957 	    &value);
958 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE2]),
959 	    &value);
960 
961 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_FEC_CORRECTED_SYMBOLS_LANE3,
962 	    &value);
963 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_FEC_CORRECTED_SYMBOLS_LANE3]),
964 	    &value);
965 
966 	if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS_V3)
967 		goto done;
968 
969 	/* CTPIO exceptions */
970 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_VI_BUSY_FALLBACK, &value);
971 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_VI_BUSY_FALLBACK]), &value);
972 
973 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_LONG_WRITE_SUCCESS, &value);
974 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_LONG_WRITE_SUCCESS]), &value);
975 
976 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_MISSING_DBELL_FAIL, &value);
977 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_MISSING_DBELL_FAIL]), &value);
978 
979 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_OVERFLOW_FAIL, &value);
980 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_OVERFLOW_FAIL]), &value);
981 
982 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_UNDERFLOW_FAIL, &value);
983 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_UNDERFLOW_FAIL]), &value);
984 
985 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_TIMEOUT_FAIL, &value);
986 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_TIMEOUT_FAIL]), &value);
987 
988 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_NONCONTIG_WR_FAIL, &value);
989 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_NONCONTIG_WR_FAIL]), &value);
990 
991 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_FRM_CLOBBER_FAIL, &value);
992 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_FRM_CLOBBER_FAIL]), &value);
993 
994 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_INVALID_WR_FAIL, &value);
995 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_INVALID_WR_FAIL]), &value);
996 
997 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_VI_CLOBBER_FALLBACK, &value);
998 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_VI_CLOBBER_FALLBACK]),
999 	    &value);
1000 
1001 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_UNQUALIFIED_FALLBACK, &value);
1002 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_UNQUALIFIED_FALLBACK]),
1003 	    &value);
1004 
1005 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_RUNT_FALLBACK, &value);
1006 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_RUNT_FALLBACK]), &value);
1007 
1008 	/* CTPIO per-port stats */
1009 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_SUCCESS, &value);
1010 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_SUCCESS]), &value);
1011 
1012 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_FALLBACK, &value);
1013 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_FALLBACK]), &value);
1014 
1015 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_POISON, &value);
1016 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_POISON]), &value);
1017 
1018 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_CTPIO_ERASE, &value);
1019 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_CTPIO_ERASE]), &value);
1020 
1021 	if (encp->enc_mac_stats_nstats < MC_CMD_MAC_NSTATS_V4)
1022 		goto done;
1023 
1024 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_SCATTER_DISABLED_TRUNC,
1025 	    &value);
1026 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_SCATTER_DISABLED_TRUNC]),
1027 	    &value);
1028 
1029 	/* Head-of-line blocking */
1030 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_IDLE, &value);
1031 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_IDLE]), &value);
1032 
1033 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_RXDP_HLB_TIMEOUT, &value);
1034 	EFSYS_STAT_SET_QWORD(&(stat[EFX_MAC_RXDP_HLB_TIMEOUT]), &value);
1035 
1036 done:
1037 	/* Read START generation counter */
1038 	EFSYS_DMA_SYNC_FOR_KERNEL(esmp, 0, EFSYS_MEM_SIZE(esmp));
1039 	EFSYS_MEM_READ_BARRIER();
1040 	EF10_MAC_STAT_READ(esmp, MC_CMD_MAC_GENERATION_START,
1041 			    &generation_start);
1042 
1043 	/* Check that we didn't read the stats in the middle of a DMA */
1044 	/* Not a good enough check ? */
1045 	if (memcmp(&generation_start, &generation_end,
1046 	    sizeof (generation_start)))
1047 		return (EAGAIN);
1048 
1049 	if (generationp)
1050 		*generationp = EFX_QWORD_FIELD(generation_start, EFX_DWORD_0);
1051 
1052 	return (0);
1053 
1054 fail2:
1055 	EFSYS_PROBE(fail2);
1056 fail1:
1057 	EFSYS_PROBE1(fail1, efx_rc_t, rc);
1058 
1059 	return (rc);
1060 }
1061 
1062 #endif	/* EFSYS_OPT_MAC_STATS */
1063 
1064 #endif	/* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */
1065